SECTION 1.  Section 150A of chapter 111 of the General Laws, as appearing in the 2012 Official Edition, is hereby amended by inserting after the second paragraph the following paragraph:-

No site shall be assigned as a place for a new facility or for the expansion of an existing facility if the site is located within a zone of 400 feet of: (1) a public water supply well or well field; (2) that area of an aquifer which: (i) contributes water to a to a well under recharge and pumping conditions that allow safe yield of the well for 180 days without any natural recharge occurring, and (ii) is bounded by the groundwater divides which result from pumping the well and by contact of the edge of the aquifer with less permeable materials; or (3) that area of an aquifer which contributes water to a spring under naturally flowing conditions.  Such zone may include streams or lakes that act as recharge boundaries.  Such zone shall be considered to extend up-gradient to its point of intersection with prevailing hydrogeologic boundaries.

SECTION 2. The department of environmental protection may promulgate rules and regulations necessary to carry out the requirements of this act.